Simultaneous attainment of light-weight, high-efficiency, and low noise: By the supermultijet-twister engine working from startup to hypersonic scram mode

Ken Naitoh, Mikiya Marui, Kouichi Ishida, Yoshitaka Sagara, Taro Tamura, Dai Shimizu, Shouhei Nonaka, Tomoaki Kubota, Taiki Hashimoto, Yoshiyuki Nojima, Masato Tanaka

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    14 Citations (Scopus)

    Abstract

    A single lightweight engine capable of operating over a wide range of Mach numbers from startup to the hypersonic regime, which was proposed for aircars, aircrafts, and spaceships (Naitoh et al, 2010, 2011, 2012), has an impressive potential of low noise and high thermal efficiency. Its new compression principle is based on super multijets colliding with pulsation. Shocktube experiments and computational fluid dynamics with a chemical reaction model at about M=1 clarified the efficiency and stability of this engine system. In this report, computations for this engine system extended with a special twister piston show reduction of thermal loss and noise, even for low subsonic Mach number M< 0.3. Then, the present engine has a good affinity with ram-scram system, because the present engine does not include turbofan system at the engine center. Thus, we will also show computational results for M>2. We also confirmed combustion occurrence by performing primitive testes for two prototype engines.

    Original languageEnglish
    Title of host publication44th AIAA Thermophysics Conference
    Publication statusPublished - 2013
    Event44th AIAA Thermophysics Conference - San Diego, CA
    Duration: 2013 Jun 242013 Jun 27

    Other

    Other44th AIAA Thermophysics Conference
    CitySan Diego, CA
    Period13/6/2413/6/27

    Fingerprint

    Plant startup
    hypersonics
    Hypersonic aerodynamics
    low noise
    engines
    Engines
    Mach number
    testes
    thermodynamic efficiency
    computational fluid dynamics
    pistons
    Pistons
    aircraft
    Chemical reactions
    chemical reactions
    Computational fluid dynamics
    prototypes
    Aircraft
    occurrences
    Experiments

    ASJC Scopus subject areas

    • Aerospace Engineering
    • Mechanical Engineering
    • Condensed Matter Physics

    Cite this

    Naitoh, K., Marui, M., Ishida, K., Sagara, Y., Tamura, T., Shimizu, D., ... Tanaka, M. (2013). Simultaneous attainment of light-weight, high-efficiency, and low noise: By the supermultijet-twister engine working from startup to hypersonic scram mode. In 44th AIAA Thermophysics Conference

    Simultaneous attainment of light-weight, high-efficiency, and low noise : By the supermultijet-twister engine working from startup to hypersonic scram mode. / Naitoh, Ken; Marui, Mikiya; Ishida, Kouichi; Sagara, Yoshitaka; Tamura, Taro; Shimizu, Dai; Nonaka, Shouhei; Kubota, Tomoaki; Hashimoto, Taiki; Nojima, Yoshiyuki; Tanaka, Masato.

    44th AIAA Thermophysics Conference. 2013.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Naitoh, K, Marui, M, Ishida, K, Sagara, Y, Tamura, T, Shimizu, D, Nonaka, S, Kubota, T, Hashimoto, T, Nojima, Y & Tanaka, M 2013, Simultaneous attainment of light-weight, high-efficiency, and low noise: By the supermultijet-twister engine working from startup to hypersonic scram mode. in 44th AIAA Thermophysics Conference. 44th AIAA Thermophysics Conference, San Diego, CA, 13/6/24.
    Naitoh, Ken ; Marui, Mikiya ; Ishida, Kouichi ; Sagara, Yoshitaka ; Tamura, Taro ; Shimizu, Dai ; Nonaka, Shouhei ; Kubota, Tomoaki ; Hashimoto, Taiki ; Nojima, Yoshiyuki ; Tanaka, Masato. / Simultaneous attainment of light-weight, high-efficiency, and low noise : By the supermultijet-twister engine working from startup to hypersonic scram mode. 44th AIAA Thermophysics Conference. 2013.
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    abstract = "A single lightweight engine capable of operating over a wide range of Mach numbers from startup to the hypersonic regime, which was proposed for aircars, aircrafts, and spaceships (Naitoh et al, 2010, 2011, 2012), has an impressive potential of low noise and high thermal efficiency. Its new compression principle is based on super multijets colliding with pulsation. Shocktube experiments and computational fluid dynamics with a chemical reaction model at about M=1 clarified the efficiency and stability of this engine system. In this report, computations for this engine system extended with a special twister piston show reduction of thermal loss and noise, even for low subsonic Mach number M< 0.3. Then, the present engine has a good affinity with ram-scram system, because the present engine does not include turbofan system at the engine center. Thus, we will also show computational results for M>2. We also confirmed combustion occurrence by performing primitive testes for two prototype engines.",
    author = "Ken Naitoh and Mikiya Marui and Kouichi Ishida and Yoshitaka Sagara and Taro Tamura and Dai Shimizu and Shouhei Nonaka and Tomoaki Kubota and Taiki Hashimoto and Yoshiyuki Nojima and Masato Tanaka",
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    AU - Tamura, Taro

    AU - Shimizu, Dai

    AU - Nonaka, Shouhei

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